1 files changed, 49 insertions, 0 deletions
diff --git a/src/ui/simple-pref-pusher.cpp b/src/ui/simple-pref-pusher.cpp
new file mode 100644
index 0000000..bc71f27
--- /dev/null
+++ b/src/ui/simple-pref-pusher.cpp
@@ -0,0 +1,49 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "simple-pref-pusher.h"
+
+#include <gtkmm/toggletoolbutton.h>
+
+namespace Inkscape {
+namespace UI {
+SimplePrefPusher::SimplePrefPusher( Gtk::ToggleToolButton *btn, Glib::ustring const &path ) :
+    Observer(path),
+    _btn(btn),
+    freeze(false)
+{
+    freeze = true;
+    _btn->set_active( Inkscape::Preferences::get()->getBool(observed_path) );
+    freeze = false;
+
+    Inkscape::Preferences::get()->addObserver(*this);
+}
+
+SimplePrefPusher::~SimplePrefPusher()
+{
+    Inkscape::Preferences::get()->removeObserver(*this);
+}
+
+void
+SimplePrefPusher::notify(Inkscape::Preferences::Entry const &newVal)
+{
+    bool newBool = newVal.getBool();
+    bool oldBool = _btn->get_active();
+
+    if (!freeze && (newBool != oldBool)) {
+        _btn->set_active(newBool);
+    }
+}
+
+}
+}
+
+/*
+  Local Variables:
+  mode:c++
+  c-file-style:"stroustrup"
+  c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
+  indent-tabs-mode:nil
+  fill-column:99
+  End:
+*/
+// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :